Rambus RMBS Insider Ownership

NASDAQ RMBS
$111.97 +4.68 (+4.36%)
At close: Oct 2, 2026 · 4:00 PM EDT

Insider Holdings by Owner

919.17K Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.887%
▼-0.0092% pp QoQ
Shares Held by Insiders
961.94K
filed for Sep 2026
▼-1.03% QoQ
Shares Outstanding
108.43Mn
108,428,000 shares
Direct Holdings
933.97K
Indirect: 27.97K
Net Shares Traded (QoQ)
-10.00K
net selling in Sep 2026
Insiders Holding Shares
17
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

Over the past 12 months, Rambus insiders sold $21.37 million of stock on the open market (173.55K shares) and made no open-market purchases.

Form 4 Holdings

Insiders Holding RMBS

Insiders 17
Shares held 919.17K
Of outstanding 0.848%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Luc Seraphin President And Ceo 345,767 0 345,767 37.6% 03 Apr, 2026
2 Xianzhi Sean Fan Evp, Coo 168,358 0 168,358 18.3% 26 May, 2026
3 Desmond Lynch Svp, Cfo 63,618 0 63,618 6.9% 24 Feb, 2026
4 Keith A Jones Principal Accounting Officer 54,719 0 54,719 6.0% 02 Mar, 2022
5 Sanjay Saraf Director 50,241 0 50,241 5.5% 04 Apr, 2022
6 Emiko Higashi Director 49,519 0 49,519 5.4% 03 Jun, 2026
7 Sumeet Gagneja Svp, Cfo 41,320 0 41,320 4.5% 04 May, 2026
8 John Shinn Svp, General Counsel 21,112 0 21,112 2.3% 26 May, 2026
9 Meera Rao Director 19,974 0 19,974 2.2% 27 Apr, 2026
10 Eric B Stang Director 0 19,218 19,218 2.1% 02 Jun, 2026
11 Necip Sayiner Director 18,223 0 18,223 2.0% 03 Jun, 2026
12 Karen M Rogge Director 17,364 0 17,364 1.9% 04 Apr, 2023
13 John K Allen Chief Accounting Officer 17,131 0 17,131 1.9% 07 Apr, 2026
14 James A Mitarotonda Director 13,946 0 13,946 1.5% 04 Apr, 2022
15 Charles Kissner Director 0 8,747 8,747 1.0% 24 Sep, 2026
16 Steven Laub Director 7,519 0 7,519 0.8% 11 May, 2026
17 Victor Peng Director 2,391 0 2,391 0.3% 03 Apr, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,580 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
22 Sep, 2026 Charles Kissner Director Disposed S 5,000 $105.00 $525.00K 8,747 Indirect
07 Aug, 2026 Charles Kissner Director Disposed S 5,000 $100.92 $504.60K 13,747 Indirect
02 Jun, 2026 Emiko Higashi Director Disposed S 5,000 $163.00 $815.00K 54,519 Direct
03 Jun, 2026 Necip Sayiner Director Disposed S 5,000 $170.15 $850.75K 18,223 Direct
02 Jun, 2026 Emiko Higashi Director Disposed S 5,000 $158.00 $790.00K 49,519 Direct
01 Jun, 2026 Eric B Stang Director Disposed S 5,000 $146.00 $730.00K 19,218 Indirect
26 May, 2026 Emiko Higashi Director Disposed S 5,000 $157.57 $787.85K 59,519 Direct
22 May, 2026 John Shinn Svp, General Counsel Disposed S 1,000 $143.63 $143.63K 21,112 Direct
26 May, 2026 Xianzhi Sean Fan Evp, Coo Disposed S 37,814 $151.69 $5.74Mn 168,458 Direct
26 May, 2026 Xianzhi Sean Fan Evp, Coo Disposed S 100 $152.35 $15.24K 168,358 Direct
07 May, 2026 Steven Laub Director Disposed S 1,500 $125.52 $188.28K 7,519 Direct
08 May, 2026 Necip Sayiner Director Disposed S 9,824 $130.18 $1.28Mn 23,223 Direct
01 May, 2026 Sumeet Gagneja Svp, Cfo Acquired A 14,518 $0.00 $0 14,518 Direct
01 May, 2026 Sumeet Gagneja Svp, Cfo Acquired A 26,802 $0.00 $0 41,320 Direct
24 Apr, 2026 Meera Rao Director Disposed S 2,972 $150.30 $446.69K 19,974 Direct
14 Apr, 2026 Meera Rao Director Disposed S 8,538 $118.08 $1.01Mn 22,946 Direct
03 Apr, 2026 John K Allen Chief Accounting Officer Disposed F 1,131 $92.22 $104.30K 17,131 Direct
01 Apr, 2026 Eric B Stang Director Acquired A 2,223 $0.00 $0 2,223 Direct
01 Apr, 2026 Meera Rao Director Acquired A 2,223 $0.00 $0 31,484 Direct
01 Apr, 2026 Luc Seraphin President And Ceo Acquired A 32,684 $0.00 $0 363,754 Direct